FLUIDIZED COAL MINING METHOD UTILIZING SELF-ENERGY STORAGE OF COAL SEAM
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United States of America
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Issued Date -
Mar 6, 2025
app pub date -
Oct 31, 2024
filing date -
Oct 31, 2024
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Abstract
A fluidized coal mining method utilizing self-energy storage of a coal seam is provided, and includes developing a mine roadway, uncovering coal actively, mining coal in fluidization, and backfilling a goaf. Dynamic phenomenon is induced by uncovering the coal actively, a coal-mining drilling well is established from a ground to the coal seam, and the coal seam is subjected to hydraulic in-situ cutting, and a coal-rock mixture subjected to hydraulic cutting flows into a roadway system along a floor roadway, and then coal, gangue and water in the mixture are separated and recycled in a subsequent circulating coal mining process.
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